الاثنين، 30 مايو 2016

ScienceDaily: Top News

ScienceDaily: Top News


Jet lag? Newly synthesized molecules turn back biological clock

Posted: 29 May 2016 02:58 PM PDT

Scientists have designed new molecules that modify the circadian rhythm, opening the way to the possibility of managing jet lag and improving treatments for sleep disorders.

Drug delivery that hits the dot

Posted: 29 May 2016 02:58 PM PDT

Brightly fluorescent nanocrystals, called quantum dots, can be used to test the delivery of drugs packaged into nanocapsules.

Decoding light for clues about dark matter

Posted: 29 May 2016 02:58 PM PDT

An international team of researchers is developing an instrument that will decode the light of the night sky to understand the nature of dark matter.

New glue instantly hardens with electric current

Posted: 29 May 2016 02:58 PM PDT

A new glue that forms a strong bond when activated by low voltage electricity may be the first of its kind.

Additional hormone measurement reveals pregnant women at high risk of preeclampsia

Posted: 29 May 2016 02:44 PM PDT

An additional blood test for pregnant women accurately predicts which women with high thyroid function are at risk of developing preeclampsia, according to a new study. The findings may help identify high-risk pregnant women and potentially avoid unnecessary treatment that carries the risk of foetal abnormalities.

Connections between gut microbiota and the brain

Posted: 29 May 2016 02:44 PM PDT

Intestinal bacteria that can boost bravery or trigger multiple sclerosis: An increasing body of research results confirms the importance of the "gut-brain axis" for neurology and indicates that the triggers for a number of neurological diseases may be located in the digestive tract.

Underestimated burden: Epilepsy, multiple sclerosis, Parkinson’s impair sexuality

Posted: 29 May 2016 02:44 PM PDT

Neurological disorders can impair sexuality on a much more massive scale than frequently assumed, leaving loss of desire, erection problems and infertility in their wake. Both men and women are affected. A person's self-esteem, love life and relationship with a significant other can all suffer.

Portuguese study did not find an increased stroke risk for football fans

Posted: 29 May 2016 02:44 PM PDT

Being excited for your team, rooting them on and suffering vicariously with them are the grand emotions that wash over spectators of football matches. If this increases the risk of stroke remains to be elucidated, as the number of strokes that occur on days with major matches is not significantly higher than on days when no football is played.

Roadmap for better protection of Borneo’s cats and small carnivores

Posted: 29 May 2016 02:44 PM PDT

Habitat conversion and fragmentation, logging, illegal hunting, fires: The rainforests and wildlife on Borneo, the third largest island in the world, are highly threatened. Now scientists have published a roadmap for more targeted conservation efforts for Bornean cats and small carnivores.

3-D model reveals how invisible waves move materials within aquatic ecosystems

Posted: 27 May 2016 04:05 PM PDT

Garbage, nutrients and tiny animals are pushed around, suspended in the world's oceans by waves invisible to the naked eye according to a new 3-D model. The model has been developed by mathematicians who have created a 3-D simulation that showcases how materials such phytoplankton, contaminants, and nutrients move within aquatic ecosystems via underwater bulges called mode-2 internal waves.

Spin glass physics with trapped ions

Posted: 27 May 2016 04:04 PM PDT

How state-of-art quantum simulations with trapped ions can be used to tackle complex computational problems.

Gaps in pregnancy testing before surgery in women of reproductive age

Posted: 27 May 2016 04:04 PM PDT

New research addresses the importance of discussing potential pregnancy and providing pregnancy testing for women of reproductive age before they undergo surgery, so that harm to mother and baby can be avoided.

Music for the eyes: Music helps before surgery

Posted: 27 May 2016 04:03 PM PDT

Having relaxing music played just before eye surgery leads to patients feeling less anxiety and requiring less sedation, concludes a new study.

Genomic study tracks African-American dispersal in the Great Migration

Posted: 27 May 2016 04:03 PM PDT

An assessment of genomic diversity in the United States of America clarifies the role of pre-Civil War admixture and early 20th century transit routes in shaping the migration history and genomic diversity among African-American communities.

Researchers use strain to engineer first high-performance, two-way oxide catalyst

Posted: 27 May 2016 10:41 AM PDT

In most cases, a catalyst that's good at driving chemical reactions in one direction is bad at driving reactions in the opposite direction. However, a team of scientists has created the first high-performance, two-way oxide catalyst.

Social media use may help identify students at risk of alcohol problems

Posted: 27 May 2016 10:33 AM PDT

Having an 'alcohol identity' puts college students at greater risk of having drinking problems, say researchers, adding that posting about alcohol use on social media sites is actually a stronger predictor of alcohol problems than having a drink.

Automating DNA origami opens door to many new uses

Posted: 27 May 2016 10:33 AM PDT

An algorithm for building DNA nanoparticles automatically has now been developed by researchers, paving the way to many more applications for 'DNA origami.'

Skin cancer: Team synthesizes new drugs with surprising powers

Posted: 27 May 2016 10:33 AM PDT

Finding new, more effective and personalized treatments for cancer is the challenge of many researchers. The challenge has been successfully met by a team that has just synthesized and developed new drugs for melanoma.

In wake of Flint crisis, new proposal seeks to 'focus on the fix' for lead poisoning

Posted: 27 May 2016 10:33 AM PDT

The crisis of lead-contaminated drinking water in Flint, Michigan continues to make headlines, but it's just the most prominent example of an 'ongoing and needless tragedy of childhood lead poisoning,' according to a noted authority on childhood lead poisoning prevention.

Telling irregularities: New procedure uses heart rate to estimate the life expectancy of infarct patients

Posted: 27 May 2016 09:29 AM PDT

The heart rate may be an indicator of a person's life expectancy. A research team has to this end analyzed an effect which at first seems paradoxical: Minor irregularities in the heartbeat are indicative of a healthy body. A clinical study confirmed a strong correlation between this phenomenon and the survival prospects of heart attack patients. The new methods of measurement may soon be applied in medical practice.

Appalachian coal ash richest in rare earth elements

Posted: 27 May 2016 09:29 AM PDT

The first comprehensive study of the content of rare earth elements in coal ashes from the United States shows that coal originating from the Appalachian Mountains has the highest concentrations of scarce elements like neodymium, europium, terbium, dysprosium, yttrium and erbium that are needed for alternative energy and other technologies. The study also reveals how important developing inexpensive, efficient extraction technologies will be to any future recovery program.

Tasty fat: X-rays finding the blueprint of why fat is yummy

Posted: 27 May 2016 08:30 AM PDT

Over three years, a research team has collected increasingly complex samples of edible fat for research. They are using new data to characterize the nanoscale structure of different kinds of edible fats and applying the data to a model that predicts the effect of processes like heating and mixing on fat structure. If food manufacturers understand the unique structures of different fat compositions, they can better mimic the desirable tastes and textures of unhealthy fats with healthier alternatives, potentially impacting diseases closely tied to diet, according to a new article.

Underwater grass beds have ability to protect, maintain their own health

Posted: 27 May 2016 08:28 AM PDT

An expansive bed of underwater grass at the mouth of the Susquehanna River has proven it is able to 'take a licking and keep on ticking.' A recent study has found that the submersed aquatic vegetation bed at Susquehanna Flats, which only recently made a comeback in the Chesapeake Bay, was not only able to survive a barrage of rough storms and flooding, but it has proven a natural ability to protect and maintain itself.

Expert urges voluntary family planning to mitigate climate change

Posted: 27 May 2016 08:26 AM PDT

A professor calls for action to tackle the effect of a rapidly growing world population on greenhouse gas production.

Arctic Ocean methane does not reach the atmosphere

Posted: 27 May 2016 08:26 AM PDT

250 methane flares release the climate gas methane from the seabed and into the Arctic Ocean. During the summer months this leads to an increased methane concentration in the ocean. But surprisingly, very little of the climate gas rising up through the sea reaches the atmosphere, report investigators.

Hawk moths have second nose for evaluating flowers

Posted: 27 May 2016 08:26 AM PDT

Manduca sexta hawk moth use their proboscis to smell the floral volatiles when they visit flowers, report scientists. They discovered the olfactory neurons involved in the perception of these volatiles on the Manduca proboscis. Only when flowers produced volatiles did the moths stay long enough to drink nectar, and only then did they deliver enough pollen on their proboscis to successfully pollinate other scenting flowers.

Fungi: Promising source of chemical diversity

Posted: 27 May 2016 08:26 AM PDT

The fungus Aspergillus fumigatus produces a group of previously unknown natural products. With reference to plant isoquinoline alkaloids, these substances have been named fumisoquins. Researchers have now discovered the novel substances while studying the fungal genome. This study shows that fungi and plants developed biosynthetic pathways for these complex molecules independently of each other. These findings make Aspergillus an interesting target for the discovery of novel drugs and their biotechnological production.

Novel multi-field invisible sensor designed by scientists

Posted: 27 May 2016 06:09 AM PDT

Made of pure copper, a new ultra-thin 'shell' conceals sensors from remote inspection while still allowing them to probe the exterior environment, report researchers.

Slithery new species: Silver boa discovered in the Bahamas Islands

Posted: 27 May 2016 06:06 AM PDT

In July of 2015 a team of scientists discovered a new species of boa during an expedition to a remote corner of the Bahamian Archipelago. They have named the new species the Silver Boa, Chilabothrus argentum. Significantly, this is the first new species of boa discovered in situ in the Caribbean since the 1940s. This new boa species is considered Critically Endangered, and is one of the most endangered boa species globally.

Teenagers and young adults still fare worse than children for many common cancers, according to Europe-wide study

Posted: 26 May 2016 04:02 PM PDT

More young people of all ages are surviving cancer than ever before, but new research shows that adolescents and young adults have a lower chance of surviving eight relatively common types of cancer than children, according to the latest data from a long-running study of cancer survival across Europe.

ليست هناك تعليقات:

إرسال تعليق